C++ (Cpp) GST_SLSOUND 예제들

예제 #1

LLMediaImplGStreamer::
LLMediaImplGStreamer () :
	mediaData ( NULL ),
	mMediaRowbytes ( 1 ),
	mTextureFormatPrimary ( LL_MEDIA_BGRA ),
	mTextureFormatType ( LL_MEDIA_UNSIGNED_INT_8_8_8_8_REV ),
	mPump ( NULL ),
	mPlaybin ( NULL ),
	mVideoSink ( NULL )
#ifdef LL_GST_SOUNDSINK
	,mAudioSink ( NULL )
#endif // LL_GST_SOUNDSINK
{
	DEBUGMSG("constructing media...");

	setMediaDepth(4);

	// Create a pumpable main-loop for this media
	mPump = g_main_loop_new (NULL, FALSE);
	if (!mPump)
	{
		return; // error
	}

	// instantiate a playbin element to do the hard work
	mPlaybin = llgst_element_factory_make ("playbin", "play");
	if (!mPlaybin)
	{
		// todo: cleanup pump
		return; // error
	}

	if (NULL == getenv("LL_GSTREAMER_EXTERNAL")) {
		// instantiate and connect a custom video sink
		mVideoSink =
			GST_SLVIDEO(llgst_element_factory_make ("private-slvideo", "slvideo"));
		if (!mVideoSink)
		{
			WARNMSG("Could not instantiate private-slvideo element.");
			// todo: cleanup.
			return; // error
		}

		g_object_set(mPlaybin, "video-sink", mVideoSink, NULL);

#ifdef LL_GST_SOUNDSINK
		// instantiate and connect a custom audio sink
		mAudioSink =
			GST_SLSOUND(llgst_element_factory_make ("private-slsound", "slsound"));
		if (!mAudioSink)
		{
			WARNMSG("Could not instantiate private-slsound element.");
			// todo: cleanup.
			return; // error
		}

		g_object_set(mPlaybin, "audio-sink", mAudioSink, NULL);
#endif
	}
}

예제 #2

파일: llmediaimplgstreamer.cpp 프로젝트: Boy/netbook

BOOL
LLMediaImplGStreamer::
init ()
{
	static bool done_init = false;
	if (!done_init)
	{
		// Init the glib type system - we need it.
		g_type_init();

		// Get symbols!
		if (! grab_gst_syms("libgstreamer-0.10.so.0",
				    "libgstvideo-0.10.so.0",
				    "libgstaudio-0.10.so.0") )
		{
			llwarns << "Couldn't find suitable GStreamer 0.10 support on this system - video playback disabled." << llendl;
			return FALSE;
		}

		if (llgst_segtrap_set_enabled)
			llgst_segtrap_set_enabled(FALSE);
		else
			llwarns << "gst_segtrap_set_enabled() is not available; Second Life automated crash-reporter may cease to function until next restart." << llendl;

		if (0 == llgst_init_check(NULL, NULL, NULL))
		{
			llwarns << "GST init failed for unspecified reason." << llendl;
			return FALSE;
		}
		
		// Init our custom plugins - only really need do this once.
		gst_slvideo_init_class();
#if 0
		gst_slsound_init_class();
#endif

		done_init = true;
	}

	mVolume = 0.1234567; // minor hack to force an initial volume update

	// Create a pumpable main-loop for this media
	mPump = g_main_loop_new (NULL, FALSE);
	if (!mPump)
	{
		return FALSE;
	}

	// instantiate a playbin element to do the hard work
	mPlaybin = llgst_element_factory_make ("playbin", "play");
	if (!mPlaybin)
	{
		// todo: cleanup pump
		return FALSE;
	}

	if (NULL == getenv("LL_GSTREAMER_EXTERNAL")) {
		// instantiate and connect a custom video sink
		mVideoSink =
			GST_SLVIDEO(llgst_element_factory_make ("private-slvideo", "slvideo"));
		if (!mVideoSink)
		{
			llwarns << "Could not instantiate private-slvideo element."
				<< llendl;
			// todo: cleanup.
			return FALSE;
		}

		g_object_set(mPlaybin, "video-sink", mVideoSink, NULL);

#ifdef LL_GST_SOUNDSINK
		// instantiate and connect a custom audio sink
		mAudioSink =
			GST_SLSOUND(llgst_element_factory_make ("private-slsound", "slsound"));
		if (!mAudioSink)
		{
			llwarns << "Could not instantiate private-slsound element."
				<< llendl;
			// todo: cleanup.
			return FALSE;
		}

		g_object_set(mPlaybin, "audio-sink", mAudioSink, NULL);
#endif
	}

	return LLMediaMovieBase::init();
}